Home / 28,070.18-38,736.90-15,494.94

Finding the Fourth Proportional to 28,070.18, 38,736.90 and 15,494.94

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Solution

The fourth proportional to 28,070.18, 38,736.90 and 15,494.94 is: 21,383.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,070.18 : 38,736.90 = 15,494.94 : x
  2. Step 2: Convert to fraction form
    28,070.18/38,736.90 = 15,494.94/x
  3. Step 3: Cross multiply
    28,070.18x = 38,736.90 × 15,494.94
  4. Step 4: Simplify right side
    28,070.18x = 600,225,941.29
  5. Step 5: Solve for x
    x = 600,225,941.29/28,070.18
  6. Step 6: Final answer
    x = 21,383.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.